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I have a large tar archive and want to see the exact (nanosecond) timestamps that are stored for each file in the archive. In case it's relevant, the tarball is in POSIX-2001 format (tar --format=posix).

tar --list --verbose displays the timestamps rounded off to the minute.

For comparison, ls --full-time does what I want, but I'd rather not have to extract everything first because it's huge.

For my purposes, command-line and GUI tools are both fine.

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up vote 5 down vote accepted

I might be misreading your question but have you tried tar -t -v --full-time -f?

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I swear I tried that before and it didn't work, but now it does. Strange. – Mechanical snail Sep 8 '12 at 2:40

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